Patents by Inventor Dean J. Spencer

Dean J. Spencer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polyolefin compositions having a low seal temperature and improved hot tack
    Patent number: 8586675
    Abstract: Polyolefin compositions comprising, all percentages being by weight: A) from 70 to 95%, of a compositions comprising (by weight): AI) 15-80% of one or more copolymers of propylene; AII) 20-85% of one or more copolymers with different comonomer(s) content than in A) B) from 5 to 30% of an elastomeric or plastomeric polyolefin or polyolefin composition.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 19, 2013
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Spencer S. Hirata, Michele Grazzi, Andrea Felisati, Dean J. Spencer, Ignazio Triassi
  • Polyolefin Compositions Having a Low Seal Temperature and Improved Hot Tack
    Publication number: 20120225999
    Abstract: Polyolefin compositions comprising, all percentages being by weight: A) from 70 to 95%, of a compositions comprising (by weight): AI) 15-80% of one or more copolymers of propylene; AII) 20-85% of one or more copolymers with different comonomer(s) content than in A) B) from 5 to 30% of an elastomeric or plastomeric polyolefin or polyolefin composition.
    Type: Application
    Filed: November 17, 2010
    Publication date: September 6, 2012
    Applicant: BASELL POLIOLEFINE ITALIA S.R.L.
    Inventors: Spencer S. Hirata, MIchele Grazzi, Andrea Felisati, Dean J. Spencer, Ignazio Triassi